(Q)bootloader and rooting - Xperia Arc Q&A, Help & Troubleshooting

hi to every one i would like to ask before i unlock my bootloader and rooting stuff. im presently on stock rom right now with firmware 2.3.4 baseband ver. -64 and build number .62. i alredy browse threads and guides about this but unfortunately i was not able to find answer.
ok my question is this.
1. will it be possible for me to install custom rom if im just going to unlock my bootloader but not rooted?
2. there are topics about easy rooting on gen. discussion .i just like to ask,is it possible to disregard downgrading process from .62 to .42 if the bootloader is unlocked for the rooting process. since i dont want to downgrade.there has been issues of bricking the phone if your going to downgrade and update afterwards via ota.
3. can anyone give me updated guide for unlocking bootloader and rooting based on my current firmware.
Thanks in advance.

shallumabijah said:
1. will it be possible for me to install custom rom if im just going to unlock my bootloader but not rooted?
Click to expand...
Click to collapse
Yes, custom roms are usually (always?) prerooted, so it gives u root permissions. Bootloader is needed to flash custom kernel.
shallumabijah said:
2. there are topics about easy rooting on gen. discussion .i just like to ask,is it possible to disregard downgrading process from .62 to .42 if the bootloader is unlocked for the rooting process. since i dont want to downgrade.there has been issues of bricking the phone if your going to downgrade and update afterwards via ota.
Click to expand...
Click to collapse
If the bootloader is unlocked ur phone gets bricked after update. However u can downgrade with locked bootloader, next root and than update. If u want lock bootloader use file attached (unpack rar archive and flash ftf using flashtool).
On the other hand u can install CWM and use RootXperia.zip (attached) to root.
shallumabijah said:
3. can anyone give me updated guide for unlocking bootloader and rooting based on my current firmware.
Click to expand...
Click to collapse
Bootloader:
Unlocking
Root:
1. 2.3.3 - use SuperOneClick Method (maybe work with 2.3.4 i dont use it) or RootXperia.zip or custom Kernel/Rom
2. 2.3.4 - use RootXperia.zip or Custom Kernel/Rom

chemney thanks for the reply..strange i cant find the thanks button using my arc. im going to use my compiuter later.
my arc is 2 days old. so im thinking if im going to unlock and root my phone or not..haha.

Unlock it
You won't regret it
Sent from my LT15i using XDA Premium App

@flo95
im really planning to do that.but before proceeding i would like to ask if it is compulsary to downgrade to .42 to gain root access cuz my im on .62 right now.
what do you think should i do first unlock bootloader or the rooting process.?

actually i already tried to unlock my boot loader but in typing imei process the instruction wanted me type 14 digits but upon seing my phones imei it has 15 digits. haha

@shallumabijah
next time read instructions it better
Instructions | Sony Xperia said:
the first 14 digits (remove the last digit) of your phone’s IMEI number
Click to expand...
Click to collapse
first what i did when i began to want root my phone was unlocking bootloader and than flashing DooMKernel which is prerooted and i didnt need to do it myself (also i got OverClocking, UnderVolting and some other things which i hadnt with stock kernel)
shallumabijah said:
chemney thanks for the reply..strange i cant find the thanks button using my arc. im going to use my compiuter later.
my arc is 2 days old. so im thinking if im going to unlock and root my phone or not..haha.
Click to expand...
Click to collapse
no problem. in xda app if u touch post for the moment u got menu. slide it and there is bouquet of flower with "thanks" (i think cause i have polish version)

ch3mn3y said:
@shallumabijah
learn reading
first what i did when i began to want root my phone was unlocking bootloader and than flashing DooMKernel which is prerooted and i didnt need to do it myself (also i got OverClocking, UnderVolting and some other things which i hadnt with stock kernel)
Click to expand...
Click to collapse
ive been reading topics about this but up to now my confidence is not that hi to proceed. im on htc desire s before which is rooted. i think im going read more before proceeding..im new to arc society.hehe.thanks again.

Related

[Q] Anyway to root 4.0.A[...] with locked BL?

I saw a few posts with solutions how to root newest FW (autoroot, root using recovery) but I don't have unlocked BL and I can't unlock it because my phone doesn't fastboot.
So is there a tricky way (I know how to use ADB so I won't have a problem with it if there's a solution using it) how to root newest fw for those with locked BL?
Please, don't offtop if you don't have nothing smart to say.
romcio47 said:
I saw a few posts with solutions how to root newest FW (autoroot, root using recovery) but I don't have unlocked BL and I can't unlock it because my phone doesn't fastboot.
So is there a tricky way (I know how to use ADB so I won't have a problem with it if there's a solution using it) how to root newest fw for those with locked BL?
Please, don't offtop if you don't have nothing smart to say.
Click to expand...
Click to collapse
Check this thread out on how to make fastboot work, will cost a little of money, but taking from the guys already done it's worth it
http://forum.xda-developers.com/showthread.php?t=1232050
Regards Dousan...
Dousan said:
Check this thread out on how to make fastboot work, will cost a little of money, but taking from the guys already done it's worth it
http://forum.xda-developers.com/showthread.php?t=1232050
Regards Dousan...
Click to expand...
Click to collapse
Yeah but what if we don't want to unlock the bootloader...flashing won't work cuz the update isn't OTA. What is this Recovery mode everyone is talking about?
I don't think you can flash a firmware through recovery AKA clockwork mod
To use recovery aka clock work mod you need to use fastboot to boot recovery play IMG, and flash a custom ROM like Dalvik2Cache
Sent from my Xperia PLAY R800i using XDA App
Fokezy said:
Yeah but what if we don't want to unlock the bootloader...flashing won't work cuz the update isn't OTA. What is this Recovery mode everyone is talking about?
Click to expand...
Click to collapse
Only way to get root with locked bootloader is by ota if available.
With unlocked bootlaoder you can do by several ways, for example flash pre-rooted DoomLord's kernel.
Thanks for every reply. I don't need root for now, I just wanted to ask if it's possible
BTW newest FW is awesome
romcio47 said:
I saw a few posts with solutions how to root newest FW (autoroot, root using recovery) but I don't have unlocked BL and I can't unlock it because my phone doesn't fastboot.
So is there a tricky way (I know how to use ADB so I won't have a problem with it if there's a solution using it) how to root newest fw for those with locked BL?
Please, don't offtop if you don't have nothing smart to say.
Click to expand...
Click to collapse
Yes you can simple re-flash to 2.3.2 root with gingerbreak and do an OTA update and you'll keep your root running 2.3.3 gingerbread rooted 4.0.A.2.368 R00i with locked bootloader...
You can use the new zergrush exploit, I heard that it works on 2.3.3
Sent from my Xperia Play
Fokezy said:
You can use the new zergrush exploit, I heard that it works on 2.3.3
Click to expand...
Click to collapse
It does http://forum.xda-developers.com/showthread.php?t=1312859

[Q] Help rooting android 2.3.3 Xperia Play r800at

Hello, I am new to these forums but have looked through (to the best of my ability) and have not found the solution to my problem. That problem is that I want to root my AT&T Sony Ericsson Xperia Play r800at (android v. 2.3.3).
I had it previously rooted using the Zergrush method (was still on 2.3.3) and it worked just fine, then about a month ago (perhaps half a month) my phone automatically updated itself via the software update function. Now I cannot get root back using the Zergrush method. I also tried the SuperOneclick method to which it hangs on step #7 and I am at a loss.
What information do you need about my phone to help in figuring out any possible solution?
Thank you for your assistance and I look forward to any replies.
Have you tried with DooMLoRD's Easy Rooting Toolkit?
PD: If the phone updated after November 2011 it seems you can't use zergRush, try with Flashtool
S34Qu4K3 said:
Have you tried with DooMLoRD's Easy Rooting Toolkit?
Click to expand...
Click to collapse
Indeed I have, that was the Zergrush method I mentioned previously. Thanks for asking.
I'm new with this but I think that your only solution is unlocking the bootloader and flashing a custom kernel & rom
S34Qu4K3 said:
Have you tried with DooMLoRD's Easy Rooting Toolkit?
PD: If the phone updated after November 2011 it seems you can't use zergRush, try with Flashtool
Click to expand...
Click to collapse
If I were to use Flashtool, what kernel would I need and do I absolutely need to unlock the bootloader in order to flash said kernel? Also, is there way to relock the bootloader (with original files intact) just in case I need to return the phone to AT&T repairs/maintenance or anything?
Ok, I've searched a bit more, seems thath you DON'T need to unlock your bootloader, just need to flash a firmware build that can be exploited by zergRush method.
I've searched and I found this (I haven't tried it)
1. Download flashtools
2. Download the .270 build Xperia_Play_3.0.1.B.0.270_ATT.rar
3. Flash the older build
4. Use flashtools to root
And you should get root acces
S34Qu4K3 said:
Ok, I've searched a bit more, seems thath you DON'T need to unlock your bootloader, just need to flash a firmware build that can be exploited by zergRush method.
I've searched and I found this (I haven't tried it)
1. Download flashtools
2. Download the .270 build Xperia_Play_3.0.1.B.0.270_ATT.rar
3. Flash the older build
4. Use flashtools to root
And you should get root acces
Click to expand...
Click to collapse
Oooohhh... My eyes flashed at that one!! I will try and get back to you as soon as possible!
Fingers crossed!
Good luck!
When you finish (sucessfuly I hope), if you want to unroot just update the phone with PC Companion
S34Qu4K3 said:
Ok, I've searched a bit more, seems thath you DON'T need to unlock your bootloader, just need to flash a firmware build that can be exploited by zergRush method.
I've searched and I found this (I haven't tried it)
1. Download flashtools
2. Download the .270 build Xperia_Play_3.0.1.B.0.270_ATT.rar
3. Flash the older build
4. Use flashtools to root
And you should get root acces
Click to expand...
Click to collapse
Yep that will work. Once rooted you can update to the latest AT&T build which is .285 but you must do it OTA. If you update through your computer it will remove the root.
Sent from my LT26i using Tapatalk 2
Spectre51 said:
Yep that will work. Once rooted you can update to the latest AT&T build which is .285 but you must do it OTA. If you update through your computer it will remove the root.
Sent from my LT26i using Tapatalk 2
Click to expand...
Click to collapse
My fault, I didn't saw thath part :3
Btwn, can you explain me what means AT&T and OTA (off the ??) ? =)
S34Qu4K3 said:
My fault, I didn't saw thath part :3
Btwn, can you explain me what means AT&T and OTA (off the ??) ? =)
Click to expand...
Click to collapse
He was talking about the carrier branded rom from AT&T which is his cellular provider. OTA means over the air. Basically doing the whole update process through the phone.
Sent from my Lumia 900
Thank you =)
Dude, it totally worked!! Not a single hiccup anywhere whatsoever!!! Thank you so much!!! :highfive:
Since you were talking about OTA updating and such: If I were to root and then update to the latest build OTA is it still possible to unroot using the flashtool or whatever was used to gain root? The reason I ask this is should AT&T ever need to look at my phone...
I think that the answer is yes, just update the phone with pc companion, also you can flash again .270 firmware and the phone should get unrooted
S34Qu4K3 said:
I think that the answer is yes, just update the phone with pc companion, also you can flash again .270 firmware and the phone should get unrooted
Click to expand...
Click to collapse
Awesome, and is there anything else I should be aware of? After all I am flashing things *wink wink*
As far i know, if you want to try any room, make sure that is compatible for locked bootloaders (you phone have a locked bootloader) and for you mobile phone type , follow the instructions carefuly and if you don't understand something, ask Oh, and don't try to flash a custom kernel (like DoomKernel) with a locked bootloader beacause you will brick your phone.
That's all I can tell you
if you downgrade will you lose your files?
thanks Mercado for the mirror sight for SOC 2.3.3
Hi Mercado: Thanks for posting the updated SOC Version sight. I tried using SOC 2.1.1 on my FREELANDER SXZ-PDX0-03 tablet witout success.
I tried SOC 2.3.3 YEA :good: YEA :good:YEA :good: SUCCESS.
MANY MANY THANKS
danvidman

Easiest way to root Arc S (2.3.4 - 4.0.2.A.0.69)?

Sorry for the question, I really dont know what to do, there are many guides here, I want to find the easiest and safest. A friend asked me to root his Arc S, I now see its way different than on my samsung
First i need to unlock the bootloader and then to root? Can someone tell me the easiest way to do this? Tnx
zimbara said:
there are many guides here
Click to expand...
Click to collapse
Pick one and choose then, as you'll just get redirected to one of them anyway.
root arc s 4.0.2.a.0.62
zimbara said:
Sorry for the question, I really dont know what to do, there are many guides here, I want to find the easiest and safest. A friend asked me to root his Arc S, I now see its way different than on my samsung
First i need to unlock the bootloader and then to root? Can someone tell me the easiest way to do this? Tnx
Click to expand...
Click to collapse
YOU DON'T HAVE TO UNLOCK BOOTLOADER TO ROOT.
Download flashtools. Install on computer
Download ftf from general stickies( select. .42/.54) only these can be rooted
Drag and drop ftf into flashtools main screen
Put phone into flash mode(hold back key while plugging into usb port) flashtools will install Rom
Restart phone.
from settings select usb debugging( development) and unknown sources( security)
Download from doomlords thread for rooting gb file
Keep phone switched. On and connected to computer run the script and follow on screen prompts.
When done phone should be rooted.
IF BOOTLOADER IS LOCKED YOU CAN UPDATE OVER THE AIR.
ONLY DO THIS if 100% SURE BOOTLOADER IS LOCKED this will update to 2.3.4 build. 69 latest stock from Sony.
Sent from my LT18i using xda premium
Why not unlock bootloader, flash custom kernel with root support, root and delete bloatware (or what you now are going to do) then flash stock kernel, relock bootloader and voila - everything fixed?
Sent from my LT18i using xda app-developers app

Root Xperia S (6.1.A.2.55)

Hello,
I'm one of those lucky guys who got the 2.55 build number.
Wandered around the forum for some time, seeking for a way to root my phone, but don't want to risk before being 99% sure that this may work.
As I understood, Bin4ry's method won't work with my phone, which results in need of unlocking the bootloader.
I checked its status and it shows that its Unlockable = Yes.
Now, let's say I unlock the bootloader, what should I do next? Flash a prerooted ROM?
All I could've found on forums was "UNLOCK YOUR BOOTLOADER" and "BIN4RY'S METHOD" stuff. Maybe because people were posting about this 2.55 thing alot. Maybe not.
All I need is a n00b friendly tutorial.
Btw, I'm on 4.0.4 ICS, which is pretty obvious.
Thank you, in advance.
Sent from my LT26i using xda app-developers app
Unlock your bootloader and just flash an auto rooting kernel.
But if you're unlocking the bootloader you may as well flash a Jellybean rom anyway
Sent from my Jellybean Xperia S
Hi, I hope the OP doesn't mind, but I'm kinda in the same situation and I need some help from you guys, because I am currently a Samsung owner (please don't throw rocks ) and I don't really know much about flashing ROM's on Sony.
So... I have with me my brother-in-law's Xperia S with 6.1.A.0.453 (ICS 4.0.4), never been tampered with, just bought, updated to ICS and rooted with Bin4ry's method.
All great, but I was hoping to flash 6.1.A.2.55, because I heard it is the latest.
But now the hard part comes, the phone has Locked Bootloader and I can't unlock it because "Service info > Configuration > Rooting Status > Bootloader unlock allowed" says NO.
That being said, if I flash the .55, how do I root it?
I updated and rooted an Xperia U a while back, using a method of changing the kernels, something like this:
Flashing the ROM I want (the one that can't be rooted)
Flashing an older kernel from a stock Rom witch was rootable
Root it
Flash the kernel of the last ROM, and root remains.
Do you guys thing that this method will work on Xperia S?
Flashing .55
Flashing an old kernel (from 6.1.A.2.45 or other that can be rooted)
Root it
Flashing the kernel of .55 again, and hoping that the Root remains.
Also, where could I find those kernels?
Ben36 said:
Unlock your bootloader and just flash an auto rooting kernel.
But if you're unlocking the bootloader you may as well flash a Jellybean rom anyway
Sent from my Jellybean Xperia S
Click to expand...
Click to collapse
bro
please tell me how to root xperia s 6.1.A.2.55, I already unlock the boot loader , but i dont know how to root. so i relock again. Please tell me how to root and can you send the ftf file for jelly bean rom. And i want to know what is kernel . i cant find it.

[Q] To Root i need unlocked bootloader but first i need backup TA, that needs root :/

To root 10.4.1.B.0.101 Firmware, I need to unlock the bootloader
To unlock the bootloader I need to backup TA
To backup TA I need root ...
Can someone advice how to left this endless circle ?
here u go
http://forum.xda-developers.com/showpost.php?p=51612704&postcount=12
anagramgenius said:
here u go
http://forum.xda-developers.com/showpost.php?p=51612704&postcount=12
Click to expand...
Click to collapse
So much work...
And I wish it would include links.
I really hope there will be a one-click root for 4.4.
It's weird all phones from the competition are easily rootable but someone 4.3 on Sony is so complex.
link for advanced stock kernel xperia zl
http://forum.xda-developers.com/showthread.php?t=2641695
They've closed alot of the bugs that were being used for the previous root methods.
IF you don't care about your data, what you CAN do is to revert to an older FTF, root, backup your TA partition, then go from there... it's a pain... but it works.
Sent from my Touchpad using Tapatalk
anagramgenius said:
here u go
http://forum.xda-developers.com/showpost.php?p=51612704&postcount=12
Click to expand...
Click to collapse
So I saw this and was about to do it, but then read this post:
http://forum.xda-developers.com/showpost.php?p=52371524&postcount=7
Seems much easier (no bootloader unlocking necessary) so I'm trying to figure out why you'd have to do everything listed in the other thread. Any insight?
Bobomo said:
So I saw this and was about to do it, but then read this post:
http://forum.xda-developers.com/showpost.php?p=52371524&postcount=7
Seems much easier (no bootloader unlocking necessary) so I'm trying to figure out why you'd have to do everything listed in the other thread. Any insight?
Click to expand...
Click to collapse
if u want your phone to be stuck in bootloop, go ahead with that method, else you follow the method which i posted. it's a long procedure, but it works!
anagramgenius said:
if u want your phone to be stuck in bootloop, go ahead with that method, else you follow the method which i posted. it's a long procedure, but it works!
Click to expand...
Click to collapse
I don't understand why someone would post bad directions like that. Also they are very similar to Doomlord's own instructions for rooting. He says to flash an old exploitable kernel and then run his exploit and then flash back.
Anyways, your method says to downgrade to .67 firmware, and I can't find that anywhere. Can I downgrade to .423 firmware and use Doomlord's root method instead? Should be the same results, right?
Also, is step 8 necessary? Do I have to flash back stock recovery or can I keep CWM?
And finally, using this method, how will we keep root when 4.4 finally arrives?
anagramgenius said:
here u go
http://forum.xda-developers.com/showpost.php?p=51612704&postcount=12
Click to expand...
Click to collapse
Thanks, It worked without any problem.
I also wouldn't take the risk to flash the Kernel of .423 over the .67 firmware.
Yes they are both Android JB 4.2. But you never know.
About 4.4, we will have to wait what will be the available methods.
Bobomo said:
I don't understand why someone would post bad directions like that. Also they are very similar to Doomlord's own instructions for rooting. He says to flash an old exploitable kernel and then run his exploit and then flash back.
Anyways, your method says to downgrade to .67 firmware, and I can't find that anywhere. Can I downgrade to .423 firmware and use Doomlord's root method instead? Should be the same results, right?
Also, is step 8 necessary? Do I have to flash back stock recovery or can I keep CWM?
And finally, using this method, how will we keep root when 4.4 finally arrives?
Click to expand...
Click to collapse
Bobomo said:
I don't understand why someone would post bad directions like that. Also they are very similar to Doomlord's own instructions for rooting. He says to flash an old exploitable kernel and then run his exploit and then flash back.
Anyways, your method says to downgrade to .67 firmware, and I can't find that anywhere. Can I downgrade to .423 firmware and use Doomlord's root method instead? Should be the same results, right?
Also, is step 8 necessary? Do I have to flash back stock recovery or can I keep CWM?
And finally, using this method, how will we keep root when 4.4 finally arrives?
Click to expand...
Click to collapse
yeah. that kernel method worked for previous firmware. now it won't work. and yeah you can downgrade to any rootable firmware. u are doing this just to backup TA so that you can lock BL. you can keep that advanced kernel. but you wont get OTA updates, better to flash stock kernel and lock your BL. when 4.4 arrives, if no rooting kit is available, you've to unlock BL, install advanced stock kernel which has custom recovery and install SU and flash back stock kernel and lock your BL
After you've rooted, but before you actually unlock your bootloader... if you install the dual boot recovery, you can make a backup of your TA partition information via TWRP as well as by using the other method... (do both to ensure you can revert)...
And then after you unlock your boot loader save ANOTHER TA backup... name them so you know which is which so you can re-lock your TA if you choose if you're running a stock kernel/rom and want the DRM keys back... but that way you don't have to go through the pain for unlocking each time...
Sent from my Touchpad using Tapatalk
Well I ended up not even needing to unlock the bootloader for my goal, which was simply stock + root on .101.
http://forum.xda-developers.com/showpost.php?p=52411661&postcount=23
Only had one small issue with the flashed zip/stripped FTF messing up the XZDualRecovery settings, but deleting xzdr.prop and rebooting fixed it.
When i was searching for, i really thought i was being crazy.
so many devices with a single click to root
I cant wait to start theming my ZL, Some mockups cooking here to new skins, but can't test without that root.
well, Did that steps worked well?
Bobomo said:
Well I ended up not even needing to unlock the bootloader for my goal, which was simply stock + root on .101.
http://forum.xda-developers.com/showpost.php?p=52411661&postcount=23
Only had one small issue with the flashed zip/stripped FTF messing up the XZDualRecovery settings, but deleting xzdr.prop and rebooting fixed it.
Click to expand...
Click to collapse
if u go with method, u have to download those stripped files every time when new firmware arrives. which is kinda boring to download those huge files. whereas in that unlocking BL method, u download only kernels with recovery which is just 15 to 20MB

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